🚿Water Heater

1-FLASH

Bradford White · RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System

Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System 1-FLASH Error Fix: Normal Operation — System OK

The ICON System status LED blinks once repeatedly, indicating the gas control valve is functioning correctly and the pilot is lit. The system is ready to heat water on demand. If the burner does not fire despite a 1-flash status, check the thermostat temperature setting — it may be set too low or at the vacation/low position. This is not an error condition.

Low severity2 fixes available✨ Free fix available

Quick Answer

Error 1-FLASH on the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System means: Normal Operation — System OK. The top-ranked community fix is “Inspect and Replace Gas Control Valve Thermostat” (medium difficulty, ~60 min, DIY cost: $15-$30). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · water heater

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many water heater repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $250-$400.

Other Bradford White Models with Error 1-FLASH

D-W-2-75T6BN Ultra Low NOx

water_heater · 2 fixes

MI50S6BN 50 Gallon 76,000 BTU Magnum Series Commercial Natural Gas Water Heater

water_heater · 2 fixes

MI50T6FBN 50 Gallon 40,000 BTU Natural Gas Magnum Commercial Water Heater

water_heater · 2 fixes

RG240T6N eF Series

water_heater · 2 fixes

RG250T6N 50 Gallon 40,000 BTU 0.67 EF Defender Safety System Gas Water Heater

water_heater · 2 fixes

RG2PV50H6N 50 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System

water_heater · 2 fixes

Other Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System Error Codes

2-FLASH

Thermopile Voltage Low

2 fixes

4-FLASH

High Temperature / ECO Trip

2 fixes

5-FLASH

Temperature Sensor Failure

2 fixes

7-FLASH

Gas Control Valve Electronics Failure

2 fixes

8-FLASH

Power Interruption / Loss of Pilot Signal

2 fixes

LED-OFF

No Power to Gas Control — LED Dark

2 fixes

MECH-ANODE

Anode Rod Depleted — Rotten Egg Smell or Corrosion

2 fixes

MECH-BLOWER

Power Vent Blower Motor Failure

2 fixes

People Also Ask About Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System Error 1-FLASH

What does error code 1-FLASH mean on a Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System?

Error code 1-FLASH on the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System means: Normal Operation — System OK. The ICON System status LED blinks once repeatedly, indicating the gas control valve is functioning correctly and the pilot is lit. The system is ready to heat water on demand. If the burner does not fire despite a 1-flash status, check the thermostat temperature setting — it may be set too low or at the vacation/low position. This is not an error condition.

How do I fix error code 1-FLASH on my Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System?

The most successful fix is "Inspect and Replace Gas Control Valve Thermostat" (medium difficulty, ~60 minutes). Estimated DIY cost: $15-$30. HomeMD has 2 community-ranked fixes for this error.

Is error code 1-FLASH on a Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System serious?

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System error 1-FLASH myself?

Yes — the top-ranked community fix ("Inspect and Replace Gas Control Valve Thermostat") is rated medium difficulty and takes about 60 minutes. Tools needed: Adjustable wrench, Pipe joint compound, Multimeter, Flathead screwdriver.

How much does it cost to repair Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System error 1-FLASH?

DIY cost: $15-$30. Professional repair typically costs $250-$400. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System have?

The Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System has 8 other known error codes, including: 2-FLASH (Thermopile Voltage Low), 4-FLASH (High Temperature / ECO Trip), 5-FLASH (Temperature Sensor Failure), 7-FLASH (Gas Control Valve Electronics Failure), 8-FLASH (Power Interruption / Loss of Pilot Signal), and 3 more.

Which other Bradford White models have the 1-FLASH error?

Error code 1-FLASH also appears on 6 other Bradford White models: D-W-2-75T6BN Ultra Low NOx, MI50S6BN 50 Gallon 76,000 BTU Magnum Series Commercial Natural Gas Water Heater, MI50T6FBN 50 Gallon 40,000 BTU Natural Gas Magnum Commercial Water Heater, RG240T6N eF Series, RG250T6N 50 Gallon 40,000 BTU 0.67 EF Defender Safety System Gas Water Heater, RG2PV50H6N 50 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System have?

The Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System has 8 other known error codes:

2-FLASH — Thermopile Voltage Low (2 fixes)
4-FLASH — High Temperature / ECO Trip (2 fixes)
5-FLASH — Temperature Sensor Failure (2 fixes)
7-FLASH — Gas Control Valve Electronics Failure (2 fixes)
8-FLASH — Power Interruption / Loss of Pilot Signal (2 fixes)
LED-OFF — No Power to Gas Control — LED Dark (2 fixes)
MECH-ANODE — Anode Rod Depleted — Rotten Egg Smell or Corrosion (2 fixes)
MECH-BLOWER — Power Vent Blower Motor Failure (2 fixes)

Which other Bradford White models have the 1-FLASH error?

Error code 1-FLASH also appears on 6 other Bradford White models:

D-W-2-75T6BN Ultra Low NOx (water heater) · 2 fixes
MI50S6BN 50 Gallon 76,000 BTU Magnum Series Commercial Natural Gas Water Heater (water heater) · 2 fixes
MI50T6FBN 50 Gallon 40,000 BTU Natural Gas Magnum Commercial Water Heater (water heater) · 2 fixes
RG240T6N eF Series (water heater) · 2 fixes
RG250T6N 50 Gallon 40,000 BTU 0.67 EF Defender Safety System Gas Water Heater (water heater) · 2 fixes
RG2PV50H6N 50 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System (water heater) · 2 fixes

Ad Space — banner

Replace ADSENSE_PUBLISHER_ID in AdUnit.tsx